I was given one of these televisions from Morrisons's on Sunday. Everything is great apart from today when I have tried using the built in DVD player for the first time. At first it worked fine, but I have tried to use it again and when I change the input to DVD a message comes up on the screen saying "no signal". I have tried switching the tv off and on and have looked in the instruction manual but can't find an answer. I have also tried pressing every button on the remote control and the buttons on the side of the tv, but nothing happens and now I have a DVD stuck in the player which won't eject. Can anyone help? If not I guess I'll just have to return it.